Please report all spam threads, posts and suspicious members. We receive spam notifications and will take immediate action!

If this is your first visit, be sure to
check out the FAQ by clicking the
link above. You may have to register
before you can post: click the register link above to proceed. To start viewing messages,
select the forum that you want to visit from the selection below.

Re: Problems with GA-EP45-UD3P powering off unexpectedly

Back to the drawing board...

Well, I removed one of the IDE DVD drives, set the primary DVD drive to 'master', went down to one memory stick in slot 1, moved the RAID to the yellow Intel controller, and left the MCH voltage at 1.260V (Manual) and Windows managed to install past the 'installing devices' part. But then the PC shut off again as I was entering in the system name during setup (~30 seconds after the 'installing devices' part ended).

Yes, I used the Intel IH10R drivers via F6/Floppy during Windows setup.

So, I swapped the memory sticks (other stick in slot 1) and set the MCH core voltage to [Auto] and now the PC turns off midway through the 'installing devices' part again. It doesn't seem to matter what stick I have in slot 1 but clearly the MCH voltage allows the install to go slightly further when set manually.

MCH/ICH
MCH Core .....[Auto] (WAS 1.260V and went further in the Windows install when it wasn't 'auto' but still shut off without warning)
MCH Reference . .0.760V [Auto]
MCH/DRAM Ref. ......0.900V [Auto]
ICH I/O .....1.570V (you suggested 1.580 but only had the options 1.570 or 1.590)
ICH Core ... 1.200V (you suggested 1.160V, only had the options of 1.100V or 1.200V)

Re: Problems with GA-EP45-UD3P powering off unexpectedly

I've got the original F4 firmware and my memory multi is set to 2.40B. I'm getting very discouraged. It's been years since I put a PC together (with 15 years working in IT) and this is all Greek to me. I don't want to overclock my system...I just want it to run stable and quit shutting off!

On Monday I'm shipping the whole thing back to Newegg if I can't get Windows installed.

Re: Problems with GA-EP45-UD3P powering off unexpectedly

I put both RAM sticks in, set the multiplier to 2.00 as suggested and I also lowered the DRAM voltage from 2.0 to 1.84 and managed to finally get Windows installed. It still dies after logging in. During the first test after installing the OS, the PC shut off after I brought up Task Manager. Then I rebooted and lowered the Vcore. I got back into Windows and managed to install Easy Tune, rebooted and ran ET6 to get some preliminary numbers before the PC shut off on me yet again.

The CPU shows oscillating speeds in ET6: 1.9 Ghz and then 3.33 Ghz and back and forth. What's up with that?

I can list my new settings here tomorrow. I've been lowering the MCH Voltage, Vcore voltage, DRAM voltage, and MCH clock skew in an attempt to finally find where the system is 'happy' with mixed results. The PC always shuts down, however, no matter what I have it set to.

I'm finally home for the weekend and with any luck, can spend some decent time trying to get this system working before throwing in the towel.

Any ideas why ET6 would show a wildly oscillating CPU speed while sitting idle?

Re: Problems with GA-EP45-UD3P powering off unexpectedly

SOLVED!

I finally had enough time to sit down with this PC and figure out what settings would make it stop powering off.

First, I reset the BIOS just to start back at square one.

Then the system went into the reboot loop. So, I pulled out one memory stick and booted successfully into the BIOS. I changed the PCI Express Frequency to 100, set the CPU PLL to 1.500v, the performance enhance to standard, set the RAID back up and set the memory timings manually to 6-6-6-18 with all other settings set to auto and rebooted.

That still caused the system to shut down while booting Windows.

So, as a last resort, I disabled C1E and EIST.

THAT worked. The PC has now been up for over 4 hours and hasn't shut off once. I've gotten Windows and all my apps installed and finally have a stable system set to stock settings!

I can only guess that the mobo was thinking the CPU was idle even though it wasn't and was either undervolting or overvolting to the point where the system became completely unstable. No matter what setting I changed in the BIOS, I couldn't get the PC to stay on. I don't know if it's a BIOS code problem or what but clearly C1E and EIST was causing the instability in my system. Since it's turned off when overclocking anyway, I decided those settings just weren't necessary even though I was simply running the system at stock.

Thanks Lsdmeasap and others! At the very least, your help has assisted me in understanding what all these new settings were for and I'll definitely be coming back to this forum if I ever get a wild hair and decide to try overclocking!